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		                        | National Stock Number:
 5310-00-459-7818
 
 Federal Supply Class:
 5310
 
 National Item Identification Number:
 004597818
 
 Description:
 NUT,SELF-LOCKING,HEXAGON
 
 Detail:
 A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes NUT (1), SELF-LOCKING, CAP.
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 Manufacturer Information:
 
 | 55LH7644-144 | 019L2 | ESNA, LLC |  | 55LH7644-144 | 72962 | HARVARD INDUSTRIES INC |  | STSCC003A28 | 98897 | LOCKHEED MARTIN CORP | 
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 Techincal Specification:
 
 | THREAD DIRECTION | RIGHT-HAND |  | MATERIAL | STEEL COMP 4130 OR |  |  | STEEL COMP 4140 OR |  |  | STEEL COMP 4340 OR |  |  | STEEL COMP 8740 NUT |  | NUT STYLE | HEXAGON |  | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |  | BEARING SURFACE TYPE | CHAMFERED OR |  |  | WASHER FACED |  | THREAD SERIES | UNJF |  | NOMINAL THREAD SIZE | 0.875 INCHES |  | THREAD QUANTITY PER INCH | 14 |  | THREAD CLASS | 3B |  | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES NUT |  | SURFACE TREATMENT | CADMIUM OVERALL |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |  | HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND |  |  | 41.0 ROCKWELL C MAXIMUM |  | NUT HEIGHT | 0.470 INCHES MINIMUM AND |  |  | 0.485 INCHES MAXIMUM |  | WIDTH ACROSS FLATS | 1.239 INCHES MINIMUM AND |  |  | 1.252 INCHES MAXIMUM |  | LUBRICATION | SOLUBLE LUBRICANT |  | TEMP RATING | -65.0 DEG FAHRENHEIT MINIMUM AND |  |  | 450.0 DEG FAHRENHEIT MAXIMUM | 
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